Ventriloquist Marvelous Marvon is found murdered after his act. Gunn is hired by Marcel Benoit to the find killer. Rinaldo his Dummy, turns out to be no dummy.
| Name | Type | Role | |
|---|---|---|---|
| Lewis Reed | Writer | ||
| Tony Barrett | Writer | ||
| Dick Beals | Guest Star | ||
| Arlene Harris | Guest Star | ||
| Wally Brown | Guest Star | ||
| John Holland | Guest Star | ||
| Kenneth Patterson | Guest Star | ||
| Maurice Marsac | Guest Star | ||
| Dan Tana | Guest Star | ||
| Fred Essler | Guest Star | ||
| Lamont Johnson | Director |